Bearings with a 30 mm bore

29 bearings on this site have a 30 mm bore, across 8 outside diameters (42–72 mm). Use the table to find one by its outside diameter and width, then open its page for the cross-brand equivalents and interchange notes.

Designation	Type	Bore (mm)	Outside Ø (mm)	Width (mm)
6806	Deep Groove Ball Bearing	30	42	7
51106	Thrust Ball Bearing	30	47	11
6906	Deep Groove Ball Bearing	30	47	9
51206	Thrust Ball Bearing	30	52	16
16006	Deep Groove Ball Bearing	30	55	9
6006	Deep Groove Ball Bearing	30	55	13
7006	Angular Contact Ball Bearing	30	55	13
NU1006	Cylindrical Roller Bearing	30	55	13
51306	Thrust Ball Bearing	30	60	21
1206	Self-Aligning Ball Bearing	30	62	16
2206	Self-Aligning Ball Bearing	30	62	20
30206	Tapered Roller Bearing	30	62	17.25
6206	Deep Groove Ball Bearing	30	62	16
7206	Angular Contact Ball Bearing	30	62	16
N206	Cylindrical Roller Bearing	30	62	16
NU206	Cylindrical Roller Bearing	30	62	16
NU2206	Cylindrical Roller Bearing	30	62	20
QJ206	Four-Point Contact Ball Bearing	30	62	16
UC206	Insert (Mounted) Ball Bearing	30	62	38.1
51406	Thrust Ball Bearing	30	70	28
1306	Self-Aligning Ball Bearing	30	72	19
2306	Self-Aligning Ball Bearing	30	72	27
30306	Tapered Roller Bearing	30	72	20.75
6306	Deep Groove Ball Bearing	30	72	19
7306	Angular Contact Ball Bearing	30	72	19
N306	Cylindrical Roller Bearing	30	72	19
NU2306	Cylindrical Roller Bearing	30	72	27
NU306	Cylindrical Roller Bearing	30	72	19
QJ306	Four-Point Contact Ball Bearing	30	72	19

Not the bore you need? See the full bearing size chart to pick another bore diameter, or read identify an unmarked bearing to work back from three measurements.

Dimensional reference only (30 mm bore, per ISO boundary-dimension standards). Confirm load ratings and suitability in the manufacturer's catalogue.